Answer:
Option C 
Step-by-step explanation:
step 1
Find the radius of the circle
we know that
The distance from the center of the circle to any point on the circumference of the circle is equal to the radius of the circle
we have
(1,-1) and (5,7)
the formula to calculate the distance between two points is equal to

substitute the values



step 2
Find the equation of the circle in center radius form

where
(h,k) is the center
r is the radius
substitute



I see I did something wrong in the 2nd part, just take the first question as the right one.
Answer:
add the y coordinates of the two lines and divide by 2
Step-by-step explanation:
½[0+(-12)]
½[0-12]
½[-12)
y co-ordinate of the midpoint is -6
Answer:
i think it will be 0 .....
Answer:
4 hours
Step-by-step explanation:
To solve this question you will simply make a ratio type equation. You know that every 1/6 of an hour, or every 10 minutes, the bucket will fill 1/2 an inch. The bucket is 12 inches tall.

Cross multiply


Convert minutes to inches

Final answer: 4 hours
Hope this helps!